When I first received this product I was hoping that it was money well spent. Let's face it, $350 could have bought one hell of nice marker. This product surpassed my expectations in every way. Let's start with the strengths:

-Surperior construction and engineering
Once you put this together you will see that a tremendous amount of thought and testing
went into making this product. Over 3 years of R&D went into develepement and it shows.
Search it on milzone.com for the history of this product; very interesting.

-APE Rampage Board
This is bar none the best board for the A5. Out performs the WAS in every way.

-Fit and finish
Once the A5 is seated into the kit it looks seamless. It blends in so well it's hard to tell
It's not part of the kit. Everything performs just as it should. There are actually some
advantages to this kit such as ease of changing the battery for the board.

-Shortens the marker
If you like a tight setup like I do then you will love this kit. I hate using a long barrel, but
accuracy is sometimes sacrificed at this expense. Not no more. I use a 12" Palmers
brass barrel and it only sticks out the front by about 4". It is truely amazing how not only
does this look like a "bullpup", but all the advantages of a real one are incorporated.
Great for snap shooting.

-Extremely customizable
The designers went to great lengths to ensure that the customer would be able to use
nearly all of the upgrades available for the A5. Not to mention they came up with a few
of their own. Namely, the magnetic trigger (which I have ordered and can't wait to get).
There are so many different looks and setups for the user to incorporate.

-Durability
Just google the B5 on youtube to see the torture test. This marker will probably outlast
your A5. Made out the same ballistic material the US Military uses. Great pains went
into ensuring there were no weak points in the design of this kit. Top notch.

-Customer service and support
No matter how good the product, without the support of the manufacturer the product
will fail. No worries here. These guys have their own website and store for all your
replacement parts, upgrades and support. They respond in a very timely matter to
your needs.

Now for what some may see as a weakness:

-Price
This isn't probably for everyone. But for those of you who are planning on putting a kit
of sorts on their A5 this one is by far the best. You get not only a trick looking setup, but
also an extremely functional value also. When you throw in the cost of the APE board
with the kit, this one is right on par with a lot of others.

-Cleaning
I am a real stickler about keeping my stuff clean. All my markers look showroom new.
This will require you more time in this department. The good news is it's well worth it.
This marker is by far the funnest one I've ever used so a little extra time cleaning is well
worth it.

Conclusion:

If your in the market for a cool looking mod for the A5 that is far surpassed by it's functionability, GO GET THE B5. You won't be disappointed. You can thank me later.